SC2639 — GEAR,SPUR

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

SC2639: GEAR,SPUR.

The GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 5155 OVERALL, body_style: PLAIN, SOLID, bore_style: W/ KEYWAY BOTH ENDS, tooth_form: STANDARD, pitch_diameter: 3.7480 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN, pressure_angle: 14.5000 DEGREES. This part is cataloged in the U.S.

Government catalog under NSN 3020-00-026-8944, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

SC2639

NSN: 3020-00-026-8944
FSC: 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
CAGE: 03670 — TYCO FIRE PRODUCTS LP (USA)

SPECIFICATIONS

material	STEEL COMP 5155 OVERALL
body_style	PLAIN, SOLID
bore_style	W/ KEYWAY BOTH ENDS
tooth_form	STANDARD
pitch_diameter	3.7480 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN
pressure_angle	14.5000 DEGREES
teeth_quantity	45
style_designator	HUBLESS
surface_treatment	CADMIUM OVERALL
face_nominal_width	0.375 INCHES IN
keyway_nominal_width	0.127 INCHES BOTH ENDS IN
bore_nominal_diameter	0.6255 INCHES BOTH ENDS IN
NSN	3020-00-026-8944

COMPONENT DIAGRAM

KEY FEATURES

•

KEYWAY NOMINAL WIDTH: 0.127 INCHES BOTH ENDS IN

•

BORE NOMINAL DIAMETER: 0.6255 INCHES BOTH ENDS IN

•

TEETH QUANTITY: 45

•

BODY STYLE: PLAIN, SOLID

•

BORE STYLE: W/ KEYWAY BOTH ENDS

•

STYLE DESIGNATOR: HUBLESS

•

MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66,AISI/SAE 1030 FED STD SINGLE MATERIAL RESPONSE OVERALL

•

PITCH DIAMETER: 3.7480 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN

TECHNICAL CHARACTERISTICS

KEYWAY NOMINAL WIDTH	0.127 INCHES BOTH ENDS IN
BORE NOMINAL DIAMETER	0.6255 INCHES BOTH ENDS IN
TEETH QUANTITY	45
BODY STYLE	PLAIN, SOLID
BORE STYLE	W/ KEYWAY BOTH ENDS
STYLE DESIGNATOR	HUBLESS
MATERIAL DOCUMENT AND CLASSIFICATION	FED STD 66,AISI/SAE 1030 FED STD SINGLE MATERIAL RESPONSE OVERALL
PITCH DIAMETER	3.7480 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN
TOOTH FORM	STANDARD
NOMINAL OUTSIDE DIAMETER	3.9170 INCHES IN

OTHER ITEMS IN FSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3020-00-000-0091 3020-00-001-0027 3020-00-001-0028 3020-00-001-0063 3020-00-001-0064 3020-00-001-0066 3020-00-001-0071 3020-00-001-0072

SUBSTITUTES & CROSS-REFERENCES 1

801E6027Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is SC2639?

SC2639 is a GEAR,SPUR.

What parts can replace SC2639?

There is 1 known substitute for SC2639: 801E6027. Substitute compatibility should be verified for your specific system.

What is the NSN for SC2639?

SC2639 is cataloged in the U.S. Government catalog under NSN 3020-00-026-8944. This indicates validated use in U.S. government and defense supply chains.

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SC2639 — GEAR,SPUR

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